Loudspeaker



FIG. 1 is a top front perspective view of a loudspeaker showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof, the right side elevation view being a mirror image thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a top plan view thereof, the bottom view being identical thereof.

The broken lines in the figures illustrate portions of the design that form no part of the claimed design. 

CLAIM The ornamental design for a loudspeaker, as shown and described. 